alternate steel是什么意思

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用法例句

Analyzed the the existing problems of replacement material in the manufacture of pressure vessels,and relative suggestions were presented.

就压力容器制造过程中常常遇到的材料代用问题进行综合分析,并阐述了相应观点。

Substitution and Ellipsis——A Study on the Method of Syntactic Reduction;

代用与省略——论历史句法中的缩约方式

Four substitution ways while the base of the all plastics pulg in sheet fuse is out of shape are emphasized.

系统地阐述了汽车熔断器的种类、故障原因及排除方法 ,并着重介绍了全塑料型插片状熔断器底座变形时的 4种代用方法。

It is shows in this paper that the functions of selction and substitution in the database of lubricating grease are very special and necessary.

选用和代用功能是润滑脂数据库不可缺少的二个独特功能。

An improved algorithm based on the equal arc length method is presented to solve substitutive arc parameters of spline hob curve section.

提出一种基于等弧长法的改进算法,用于求解花键滚刀理论齿形的代用圆弧参数。

This paper presents a new method——using mean radius of curvature to find the substitutive arc of Archimedes spiral,with which better precision can be obtained and the calculating formulas are very simple.

提出了一种用平均曲率半径法求阿基米德螺旋线的代用圆弧的新方法,其计算公式简单,并可得到较高的精度。

Preparation and application of substitution alkali TS to dyeing;

新型染色代用碱TS的制备及应用

Development of substitutes for lead pigment;

含铅颜料代用品的开发进展

Objective To study the effects of Placenta Hominis and its substitutes on learning and memory ability in mice.

目的探讨紫河车及其代用品改善学习记忆的药理作用。

The definition,features as well as advantages of bio-oil which is used as substitute fuel are presented in this article and the advantages and disadvantages of several other substitute fuels are analyzed,which shows that the process of bio-oil used as substitute fuel is an inexorable trend.

主要介绍了生物质液化燃油代用燃料的概念、特点及优势,分析了其它几种代用燃料优势与不足,并阐明了生物质液化燃油代用燃料发展的必然趋势。

Through the analysis of CO,NO X and HC discharged from substitute fuel of motor vehicles,it's shown that the substitute fuel is good in minimizing tail gas pollution and protecting city environment.

通过对机动车代用燃料的CO、NOX、HC及烟度等排放情况的分析 ,指出代用燃料在减轻机动车尾气污染、保护城市环境方面一般有着较好的表现 ,认为大力发展代用燃料是提高城市大气环境质量的有效途

LPG(Liquefied Petroleum Gas)was used as gasoline engine substitute fuel.

使用液化石油气(LPG)作为汽油机代用燃料,完成了LPG发动机部分结构参数,燃料供给系统和点火系统的开发,并获取了LPG喷气量MAP图。